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Message-ID: <20200228180115.GA14079@bogus>
Date: Fri, 28 Feb 2020 12:01:15 -0600
From: Rob Herring <robh@...nel.org>
To: Jerome Brunet <jbrunet@...libre.com>
Cc: Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
Kevin Hilman <khilman@...libre.com>
Subject: Re: [PATCH 5/9] ASoC: meson: convert axg fifo to schema
On Mon, Feb 24, 2020 at 03:58:17PM +0100, Jerome Brunet wrote:
> Convert the DT binding documentation for the Amlogic axg audio FIFOs to
> schema.
>
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
> .../bindings/sound/amlogic,axg-fifo.txt | 34 ------
> .../bindings/sound/amlogic,axg-fifo.yaml | 111 ++++++++++++++++++
> 2 files changed, 111 insertions(+), 34 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
> create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
>
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
> deleted file mode 100644
> index fa4545ed81ca..000000000000
> --- a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -* Amlogic Audio FIFO controllers
> -
> -Required properties:
> -- compatible: 'amlogic,axg-toddr' or
> - 'amlogic,axg-toddr' or
> - 'amlogic,g12a-frddr' or
> - 'amlogic,g12a-toddr' or
> - 'amlogic,sm1-frddr' or
> - 'amlogic,sm1-toddr'
> -- reg: physical base address of the controller and length of memory
> - mapped region.
> -- interrupts: interrupt specifier for the fifo.
> -- clocks: phandle to the fifo peripheral clock provided by the audio
> - clock controller.
> -- resets: list of reset phandle, one for each entry reset-names.
> -- reset-names: should contain the following:
> - * "arb" : memory ARB line (required)
> - * "rst" : dedicated device reset line (optional)
> -- #sound-dai-cells: must be 0.
> -- amlogic,fifo-depth: The size of the controller's fifo in bytes. This
> - is useful for determining certain configuration such
> - as the flush threshold of the fifo
> -
> -Example of FRDDR A on the A113 SoC:
> -
> -frddr_a: audio-controller@1c0 {
> - compatible = "amlogic,axg-frddr";
> - reg = <0x0 0x1c0 0x0 0x1c>;
> - #sound-dai-cells = <0>;
> - interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
> - clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
> - resets = <&arb AXG_ARB_FRDDR_A>;
> - fifo-depth = <512>;
> -};
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
> new file mode 100644
> index 000000000000..d9fe4f624784
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
> @@ -0,0 +1,111 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/amlogic,axg-fifo.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic AXG Audio FIFO controllers
> +
> +maintainers:
> + - Jerome Brunet <jbrunet@...libre.com>
> +
> +properties:
> + $nodename:
> + pattern: "^audio-controller@.*"
> +
> + "#sound-dai-cells":
> + const: 0
> +
> + compatible:
> + oneOf:
> + - items:
> + - const:
> + amlogic,axg-toddr
> + - items:
> + - const:
> + amlogic,axg-frddr
> + - items:
> + - enum:
> + - amlogic,g12a-toddr
> + - amlogic,sm1-toddr
> + - const:
> + amlogic,axg-toddr
> + - items:
> + - enum:
> + - amlogic,g12a-frddr
> + - amlogic,sm1-frddr
> + - const:
> + amlogic,axg-frddr
> +
> + clocks:
> + items:
> + - description: Peripheral clock
> +
> + interrupts:
> + maxItems: 1
> +
> + reg:
> + maxItems: 1
> +
> + resets:
> + minItems: 1
> + items:
> + - description: Memory ARB line
> + - description: Dedicated device reset line
> +
> + reset-names:
> + minItems: 1
> + items:
> + - const: arb
> + - const: rst
> +
> + amlogic,fifo-depth:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: Size of the controller's fifo in bytes
Aren't there some constraints on possible values? I'm sure it's more
than 0 and less than 2^32.
> +
> +required:
> + - "#sound-dai-cells"
> + - compatible
> + - interrupts
> + - reg
> + - clocks
> + - resets
> + - amlogic,fifo-depth
> +
> +if:
> + properties:
> + compatible:
> + contains:
> + enum:
> + - amlogic,g12a-toddr
> + - amlogic,sm1-toddr
> + - amlogic,g12a-frddr
> + - amlogic,sm1-frddr
> +then:
> + properties:
> + resets:
> + minItems: 2
> + reset-names:
> + minItems: 2
> + required:
> + - reset-names
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/axg-audio-clkc.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
> + #include <dt-bindings/reset/amlogic,meson-g12a-audio-reset.h>
> +
> + frddr_a: audio-controller@1c0 {
> + compatible = "amlogic,g12a-frddr", "amlogic,axg-frddr";
> + reg = <0x0 0x1c0 0x0 0x1c>;
> + #sound-dai-cells = <0>;
> + interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
> + clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
> + resets = <&arb AXG_ARB_FRDDR_A>, <&clkc_audio AUD_RESET_FRDDR_A>;
> + reset-names = "arb", "rst";
> + amlogic,fifo-depth = <512>;
> + };
> +
> --
> 2.24.1
>
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